Gem bundler support in TextMate's RSpec bundle

For the last couple of weeks, I’ve been working with Merb and Rails 3 apps that use the gem bundler. To my dismay, Textmate’s RSpec bundle doesn’t know how to run specs in bundled apps. The bundler doesn’t come with a way to automatically load its environment yet, so I resorted to a hacky check for a Gemfile. It’s working perfectly for me, though, in both Merb and Rails 3 apps.